Robert Ingersoll and his brother Charles Ingersoll founded the Ingersoll Watch Company in New York City in the 1890's. Initially called Robt. H. Ingersoll & Bro they traded from 51 Maiden Lane, Manhattan. They became famous for producing a pocket watch that retailed for $1 which became known as the Ingersoll 'Dollar Watch'. The Dollar Watch went on to sell over forty million units.
In the early 1900's Ingersoll acquired retail premises and later a factory at St John's Street in Clerkenwell. The Ingersoll logo can still be seen today at the top of the building at (pictured here)
As part of the war effort Ingersoll Engineering were put to work making locking devices for aviation. Their Y.2. Series Aircraft Locks were used on glider tow-line release mechanisms.
The Famous Ten Lever Ingersoll Lock (Impregnable No 71) was invented by Mr. J.W.Taylor in 1944. The lock is now known as the Classic (SC71). The ten lever mechanism was incorporated into a design for a padlock by Mr. L. Young. It is a testament to the outstanding abilities of these designers that both products are still in production to this day. Among the other notable designers was Mr. William Ernest Stubbs (Bill Stubbs) responsible for the M52 range of locks (pictured seated in this image).
Ingersoll have occupied various premises over the decades including Willesedon, London - Fernbank Road, Ascot, Berkshire- Kingsway Holborn London - South Ruislip Middlesex, Harp Lane, Great Tower Street, London and School Street Willenhall, West Midlands.
In later years, and a few acquisitions and mergers ownership of the brand lies with Assay Abloy.